Polarized relay.



PATENTED JAN. 14, 1908. G. H. THORDARSON.

POLARIZED RELAY.

APPLICATION FILED un. 31, 1904.

2 SHEETS-SHEET 1.

v PATENTED JAN. 14, 1908.

C. H. THORDARSON. POLARIZED RELAY.

APPLICATION TILED EAR. 31, 1904.

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UNITED srrn'rns PAT T OFFICE.

" CHESTER-H. THORDARSON, or CHICAGO, ILLINOIS.

POLARIZED RELAY.

No. 876,413. Specification of Letters Patent. Patented Jan. 14;- 1908.3

Application filed March 31, 1904- Serial No. 200,870-

To all whom 'itmay concern: paths taken by the coin when' deflected in" Be itknown that I, CHESTER H. THORDAR- one direction or the other, according to the sow, a'citizen of the United States, residing operation of the relay. at Chicago, in thecounty of Cook and State The same part is designated by the same of Illinois, have invented a new and useful reference sign wherever it occurs throughout Polarized Relay, of which the following is a the several views. specification. In" many instances in-the useful arts This invention relates to polarized relays. occasion arises for the use offa polarized The object of the invention is to provide a relay, as, for instance, where it is desiredto 10 polarized relay which is simple in construcapply work or power in onedirection or the tionrand eflicient ino eration. other, such direction bein controllable by A=further object o theinvention is to procontrolling the direct-ion of the flow ofcurvide a polarized relay wherein the work to rent through a magnet.- In apparatus asp be performed is accomplished through the usually constructed for accomphshing this attractiveforce exerted by an electro-magnet result a polarized magnet is employed, the upon its armature, the direction of applicapolarized armature thereof beingactuated tion of the-work performed by such armature in a well known manner in one direction or being controlled by the attractive force the other according to the'polarity of the fexerted u on a'polarized armature, that is, magnet in connection with which such arma wherein t 1e ,polarized armature merely conture is used, such olarity being controlled trols' the -direction of application of thework by the direction of ow of current-around the and theattractiveforce of the electro-magnet magnet. In such instances, however, the: I accomplishing the work required. polarized armature is shifted or moved 2 v 1. ,1. Other objects of the invention will appear merely b ythe attractive force exerted there 3 zamorefully hereinafter. on by the permanent magnetism of the Thei'nventionconsists substantially in the magnet. As is well-known, the attractive construction, combination, location and relaforce exerted by the permanent magnetism tive arrangement of parts, all as will be more of a magnet is weak in comparison with the fully 'hereinafter'set forth, as shown in the attractive force exerted by anelectro-magnet 35 accompanying drawings, and finally pointed upon its armature when the circuit of the out in the appended claims. electro-n1agnet is closed. I Referring to the accompanying drawings, It is among the special purposes of my and to the various views and reference signs present invention to provide a construction I appearing thereon,Figur e 1 is aview in eleof polarized relay wherein the work to be 35 vation ofa-construction of polarized relay; accomplished is performed by an electro Y V embodying the-principles of my invention. magnet, such magnet exerting its attractive ig. 2 abottom plan view of the same, force upon the armature thereof, while theshowing the polarized armature in centered polarized armature operatingunderth'edn-- ,position. Fig. 3 is a view-similar to Fig. 2, fluence of the weak permanent magnetism 40 showing the polarized armature shifted into of the-magnet is employed merelyto control I position to control the direction of applicathe direction of app ication of the work per- I tionjofth'e-work to be performed by the armaformed by the armature of the electro-- ture-ofthe electro-magnet. Fig- 4 is a view magnet. In this manner, it will be seen similar to" Figs. 2 and'S, showing the position that I am enabled to secure a more efliclent 45 of the arts upon the operation of the armaand positive action in the accomplishment of .ture-o-the electro-magnet with the direction the work required byutilizing'the reater' controlling armature in position to which it power of the attractive force of an e e'ctr0--- has been actuated, as shown in Fig. 3. Fig. magnet upon its armature in the accom lish- 5 is fi'fVlGW-lll front elevation, the top plate ment of the work required than Wo d lie- 50 being; removed, of a coin box showing the possible where merely the attractiveforceapplication thereto of a olarized relay emexerted by thepermanent magnet upon-its I bodying the principles of my invention and polarized armature depended upon for acillustrating one use to which my invention is complishing' the work desired. These de-- applicable. Fig. 6is aview in side elevation, sirabl'e objects may be accom lished andllo 55 looking from the righthand side of Fig. 5, carried out, in many specifical y different with the-side plate removedto-disclose-the constructions and arrangements of-*appara-r In the drawings, reference-signs A and B designate magnet spools or coils, having the usual cores C and D.

E designates a permanent steel magnet of I the horse-shoe variety arranged in the usual manner with regard to the polarized magnets, that 18, having one end thereof arranged to extend over and in cooperative relation with respect to an end of each of the cores C,

D, of the electro-magnets, as shown in the up er art of Fig. 5, and carrying an adjusta e b ock F at the other end thereof, in which adjustable block is pivotally mounted a polarized armature G. This polarized armature is arranged to project transversely across the space between the opposite ends of the cores C, D, of the electro-magnets and normally midway between them. Pole pieces H are mounted upon the electro-magnet cores C D at this end, and are provided with enlargements presented towards the polarized armature G, to increase the at tractive force exerted by the permanent magnetism upon the polarized armature. The polarized armature G is pivotally mounted in the adjustable block F to swing' laterally with respect to itself, that is, back and forth between the pole-pieces H. By this construction and in a manner well known to persons skilled in the art, it will be seen that when current flows through the coils A, B, in one direction the polarized armature will be attracted towards one or the other of the poleieces H, according to the direction of flow o the current, and when the direction of the current is reversed the polar ized magnet will be rocked or swung m the opposite direction or towards the other polepiece H; consequently, by varying the direc tion of flow of current through the coils of spools A and B the polarized armature may be thrown to one side or the other as desired.

J designates a stationary part of a soft iron armature for the electro-magnets, upon which stationary part is pivotally mounted the movable part K of the armature having pole-pieces cooperating with the ends or end surfaces of the cores C, D, of the electromagnets.

If desired, and as shown at L, Fig. 5, the ends or pole surfaces of the cores C, D, of the eleotro-magnets may be suitably beveled in order to present the most advantageous arrangement. The pole arms of the pivoted soft iron armature portion K are arranged to straddle the extended end of the polarized armature G, that is to say, the extended end the pole arms of the pivotally mounted portion of the armature of the electro-magnet.

Pivotally mounted upon the pivoted armature K is the Working member M, that is, the member which is designed to accomplish. the work, andwhich in the s ecific details of construction thereof depends upon the character of the work to be performed. For'instance, and in the example given showing the adaptation, that is where the device is employed in connection with a coin controlling apparatus, that is to control the delivery of a coin into one chute or another, the working member M is provided at each end thereof with pins or projections N, spaced a suitable distance apart to receive and support thereon the coin when properly deposited, as indicated in dotted lines at 0, see Fig. 3, it being the object and purpose of the. apparatus to deflect or move the coin to the one side or the other according to the circumstances of the means whereby when the polarized armature G is rocked or swung in one direction it will cause the working member M to rock or,

swing in one direction when the armature K is actuated by completing the circuit of its electro-magnet, and when the polarized armature'G is rocked or moved in the 0 posite direction the working member M wi l be caused to rock or swing in the opposite direction to that above described when its supporting armature K is actuated. To accomplish this result I provide the movable member M with pins or projections P, Q, on the face thereof and spaced a sufficient distance apart to receive freely therebetween the extended end of the polarized armature G, and in the opposite edges of the extended end of the polarized armature, I provide notches or shoulders R, S, so that when the polarized. armature G is rocked or moved in one direction, say to the left from its central position, as shown in Fig. 2, into the position shown Fig. 3, the shoulder R is brought into position to be engaged by the pin P on the working member M,when armature K is attracted, thereby causing said working member to rocked or swung to the right as shown in Flg. 4, and hence causing a movement of the coin in the particular instance given and which is sup orted by the supporting pins N of the wor ing member, to be moved to the right. If, however, the polarized armature G is moved to the right from its central position as shown in Fig. 2, the shoulder S is brought into position to be engaged by the pin Q of the working member when the armature K is attracted or rocked, thereby causing the working member to berocked or swung to the left, or in the opposite position from that 65 0f the polarized armatureGprojects betweo' 1 shown in Fig. 4, and hence delivering or ;moving thei'coirg inithewinstance given, to-

wards the left instead of :to the right.

-' From the foregoing description it will .be

I readily-seen that the polarized armature is polarity of the permanent magnets in connection :with which said armature is associated; and that the-work to be accomplished is performed by the attractive forceof the electro-magnet exerted upon its armature, the polarized armature merely directing or controlling the direction of application of the work. c

T designates a circuit controlling arm arranged to be engaged and moved by a coin, in the instance given, when deposited and resting upon: the working member supporting arms N, into position to close circuit connec tion between the insulated contact strips (1, I). These contact stri s control the circuit throu h the coils of e ectro magnets A and B, and when the apparatus is in its normal position, as shown n Fig. 2, this circuit is open,

' but when the com is deposited, as indicated in dotted lines inFig. 3, the circuit between I thestrips a, b, is closed and remains closed so'long as the coin in the instance given rests upon the supporting pins N of the working member.

The rocking movement of armature K, under the influence of the attractive force exerted thereon by the energization of the electro-magnet coils, may be yieldingly op- .posed in any suitable or convenient manner. Ihave shown a simple arrangement, wherein a spring W is connected at one end to a fixed part or plate A, and at the other end to a projection B of the pivoted armature K,

the tension of said spring being exerted in a p illustrating direction to retract the armature K. The tension of said spring may be adjusted in any suitable or convenient manner.

In Fi s. 5 and 6 I have shown an illustrative em odiment of a coin controlling apparatus, showing one form of use to which my invention may be put. In this exemplification I have shown my invention as applied to the coin-box of a telephone apparatus. It is a common system to employ coin boxes in connection with telephones, wherein a person desiring to use the telephone deposits a coin, slug or token into the box as payment for the ,use of the phone.e In case the party using the phone to make a call secures his has deposited in the slot is released from the" slot and is returned;and the exemplification one form of apparatus embodymg the principles of my invention is a coin box of this nature, Cdesignating the inclosing casing, the front plate of which is removed in-Fig. 5, and D the compartment receiving the coin, slug or token, E the slot into which the coin is delivered. The supporting pins N of the working member of the polarized relay are arranged to project transversely across the raceway of the slot E, as indicated in Fig. 6, and into position to receive and form a support for a coin deposited through the opening E of the slot. F. desi nates the raceway for returning the coin, s ugor token to the party using the. phone in case his circuit connection is not secured, and G designates a passageway through the inclosing wall of the raceway F into the .coin box orcompartment D, and the projecting ends N of the working member of the polarized relay are so relatively arranged with that when with a coin resting on said pins or projections N said working member is rocked or swung in "one direction the coin is vdelivered to the delivery raceway F, and when said workingmember is rocked or swung in the opposite direction the coin is delivered into the passage G, and thenceinto the box or compartment ,D.' While, however, =I have shown this apparatusas merely one form of use to which my invention is applicable, I desire it to be understood, and as above indicated, that my invention is capable of general use and is' not to be confined to its use in connection with. the apparatus shown.

It is believed that the operation-of the device will be readily understood from the foregoing description- By merely controlling the direction of current through the coils of electro-magnets the direction of movement of the polarized armature may be controlled. The armature of the electro-magnet moves in a constant direction, that is,it recipromovement of the Working member, carried by such electro-magnet armature is controlled and directed according to the position of the polarized armature. Therefore, the polarized armature merely operates as a director to control the direction of application of the work to be-performed, the actual work being accomplished by the electro-magnet.

Having now set forth the object and nature of my invention and a construction embodying the principles thereof, and havin described such construction, its function an mode of operation, What I claim as new and useful and of my own invention, and desire to secure by Letters Patent, is:

having po e-pieces, a movable armature for said electro-magnet, a-working member car ried by said armature, a polarized armature actuated by the attractive force of said polepieces, said polarized armature operating respect to the raceway F and the passage G cates back and forth, but the direction of 1. In a olarized relay, an electro-magnet.

pins or projections where to control the direction of action of said working member.

2; In a polarized relay, a working member arranged to perform work in different directions, an electro-magnet, an armature therefor, connections between said armature and said working member for operating the latter, and means also operated by said magnet for controlling the direction of applica tion of the workin member.

3. In a polarized relay, a working member arranged to perform the work required and ada ted to operate in different directions, an e ectro-magnet, a movable armature therefor, and connections between said movable armature and said working member, in combination With a olarized armature arranged to be operated by said magnet, said polarized armature controlling the direction of application of the work of the working member and independently of the direction of operation of said armature.

4. In a polarized relay, an electro-magnet, a movable armature therefor, a pivotally mounted working member connected to said armature, a polarized armature actuated by said magnet, said polarized armature arranged to control the direction of rocking movement of said working member relative to its actuatin armature.

5. In a polarized re a an electro-magnet, a movable armature therefor, a working member pivotally mounted upon said armature, a polarized armature also actuated by said magnet, said olarized armature arranged to control t e direction of rocking movement of said working member upon its pivot upon its supporting armature.

'6. In a polarized relay, an electro-mag net, a movable armature therefor, a work ing member pivotally mounted upon said movable armature, a polarized armature, and means whereby the position of the polarized armature controls the direction of rocking movement of said working member when said electro-magnet armature is moved, as and for the purpose set forth.

7. In a polarized relay, an electro-magnet, a movable armature therefor, a working member pivotally'mounted upon said armature and provided with engaging pins or rojections, a polarized armature exten ing between said pins or projections and 'provided with shoulders on opposite sides erating with said y the positionof said polarizedarmature determines the dithereof, said shoulders coo rection of rocking movement of said work-.

ing member When said electro-magnet armature is attracted, as and for the purpose set forth.

8. In a polarized relay, an electro-magnet, a movable armature therefor, a working member pivotally'mounted upon said armature, pins or projections carried by said working member, on opposite sides of the pivot thereof, a polarized armature ar ranged to extend between said pins or pro jections and provided-with engaging shoulders cooperating with said pins or projections, whereby the position of said olarized armature determines the direction of rocking movement of said working member when said electro-magnet armature is attracted, as and for the purpose set forth.

9. In a polarized relay, an electro-magnet, and a permanent magnet associated therewith, a soft iron armature for said electromagnet, and a polarized armature for said ermanent magnet, a working member actuated by said soft iron armature, and means controllable by the position of said polarized armature for determining the direction of application of the Work, as and for the purpose set forth.

1.0. In a polarized relay, an electro-magnet, and an associated permanent magnet, a soft iron armature for said electromagnet, and a polarized armature for said permanent magnet, a working member actuated by said soft iron armature to accomplish the Work desired, and connections controlled by the position of said polarized armature for controlling the direction of application of the work, as and for the purpose set forth.

11. A polarized relay, comprising in combination an electro-magnet, a movable armature therefor, a working member movably connected to said armature and having two SU'JPOI'lJS, and a polarized armature arranged to control the direction of movement of said working member to withdraw either of said supports as desired.

12. In a polarizedrelay, an electro-magnet, an armature therefor, a working -member pivotally mounted upon said armature and carryin supporting pins or projections, movab e contacts, means for closing the circuit between said contacts, and a polarized armature for controlling the direction of rocking movement of said working member upon said armature when the latter is attracted by the energizations of the coils of the electro-magnet, as and for the purpose set forth.

13. In a polarized relay, an electro-niagnet, a pivotally mounted armature therefor,

electro-magnet1c circuit arranged to neutral- I 'k, L

ize a portion of the said permanent ma etic controls the direction of movement of the 10 circult, a polarized armature arranged mthe working member. magnetic field of the permanent magnetic In Witness whereof, I have hereunto set circuit, an armature arranged to be influmy hand this 24th day of March, 1904, in the enced by the electro-magnetic field after the presence of the subscribing Witnesses.

permanent magnetic circuit is thus new CHESTER H. THORDARSON. tralized, a worklm member operatively con- Vitnesses: nected with he e iectro-ma etic armature, C. H. SEEM,

and means whereby the po arized armature S. E. DARBY. 

